Sodar, or Sonic Detection and Ranging, is a remote sensing technology that uses sound waves to measure atmospheric conditions, particularly wind profiles. It is similar to radar, which uses radio waves, but instead employs ultrasonic sound waves. Sodar systems emit sound pulses into the atmosphere, and by analyzing the echoes of these sound waves as they reflect off turbulent air layers, they can determine wind speed, direction, and other characteristics at various altitudes.
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